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  <a name="EN-US_TOPIC_0000002047208464"></a><a name="EN-US_TOPIC_0000002047208464"></a>
  <h1 class="topictitle1">Replacing the NTP Certificate</h1>
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   <p id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_p9956954154818">When a storage device communicates with an NTP server, the storage device functions as a client and the NTP server functions as a server (NTP synchronization clock source). In this scenario, the CA certificate must be imported, but the client certificate cannot be imported.</p>
   <div class="section" id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_section584273114416">
    <h4 class="sectiontitle">Context</h4>
    <p id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_p1380515321140">In the NTP scenario, no default CA certificate or certificate revocation list (CRL) exists, and CRL is not supported.</p>
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   <div class="section" id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_section74111513194117">
    <h4 class="sectiontitle">Procedure</h4>
    <ol id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_ol43351216154113">
     <li id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_li10176355174117"><span>Obtain the certificate from the NTP server and copy it to the maintenance terminal.</span><p></p>
      <ol type="a" id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_ol2663295">
       <li id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_li23969655">On the maintenance terminal, press <strong id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_b1125215218619">Win+R</strong>.<p class="litext" id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_p14400305">The <strong id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_b1753918191671">Run</strong> dialog box is displayed.</p></li>
       <li id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_li62493887">Enter <strong id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_b143978531375">\\</strong><em id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_i19185817716">NTP server IP address</em> and click <strong id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_b17961034778">OK</strong>.<p class="litext" id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_p25574072">The maintenance terminal attempts to remotely access the NTP server.</p></li>
       <li id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_li28840063">Type the user name and password of the NTP server and click <strong id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_b6434513285">OK</strong> to enter the shared directory.</li>
       <li id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_li58233980">Enter the <strong id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_b442082716818">ntp_config</strong> folder, select the NTP certificate file that contains the <strong id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_b673143314814">ntpkey_cert</strong> field, and press <strong id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_b7772736481">Ctrl+C</strong> to copy the certificate file.</li>
       <li id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_li54343776">Go back to the maintenance terminal desktop and press <strong id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_b6323151394">Ctrl+V</strong> to copy the NTP certificate file to the maintenance terminal.</li>
       <li id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_li19331940">Right-click the NTP certificate file and then select <strong id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_b1421132415910">Rename</strong> from the shortcut menu. Add the <strong id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_b44921301999">.crt</strong> extension to the file name, and click <strong id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_b866914351993">Enter</strong>.</li>
      </ol> <p></p></li>
     <li id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_li1233541619416"><span>Import the certificate to the storage device on DeviceManager.</span><p></p><p id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_p16733118125011">For details, see <a href="en-us_topic_0000001456809124.html#EN-US_TOPIC_0000001456809124__li775722792914">3</a>. Change the operation of selecting <strong id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_b12469123518508">Management plane domain authentication certificate</strong> to selecting <strong id="EN-US_TOPIC_0000002047208464__en-us_topic_0000001928455585_en-us_topic_0000001506026085_en-us_topic_0000001506049977_b98131514125119">NTP certificate</strong>.</p> <p></p></li>
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     <strong>Parent topic:</strong> <a href="en-us_topic_0000002083405977.html">Replacing Certificates of a Storage Device</a>
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